bearing manufacturer supply printing machinery with good spherical roller bearing
1.Product description
This Spherical roller bearing 22205C/22210C/22224C is used for Agricultural machinery,textile machinery,transportation systems,Automobiles, rolling mill, mining, metallurgyor construction machinery,papermaking and speed reducer,etc.
| Material | Gcr15(stainless steel) Material/stainless steel |
| Quality | P0,P6,P5,P4,P2 |
| Cage,Retainer | MB,CA,CC,E |
| size | 25*52*18mm |
| type | spherical roller bearing |
| Certificate | SGS |
| Service | OEM&ODM |
| Market | America,Europe,Africa,Oceania,Asia |
| Application | used in many areas of large steel mills, papermaking and speed reducer,aviation,aerospace,marine,railway,metallurgy,steel, mining,electricity,machinery manufacturing,printing, electronics,textiles,food,chemical,automotive etc |
A.Brief IntroductionSpherical roller bearing has two columns of roller, mainly bear radial load, but also can carry axial load in either direction.Have high radial load capacity, especially suitable for overloading or under vibration loading work, but can't afford to pure axial load.This kind of bearing outer ring raceway is spherical shape, so the self-aligning performance is good, can compensate the alignment error.
Has two columns symmetric spherical roller type, there's a share of the spherical outer ring raceway, the inner ring has two the tilt Angle of a race to the bearing axis, has a good heart performance, when the axial stress bending or install different heart bearings can still be used normally, so vary with different bearing size series, generally allowed by the self-aligning Angle from 1 to 2.5 degrees, the type of bearing load capacity is larger, besides can bear radial load bearing can withstand the axial load, two-way role has good shock resistance, typically spherical roller bearing is allowed to work speed is low.
Self-aligning roller bearing press roller cross section shape is divided into symmetric form spherical roller and asymmetric form spherical roller two kinds of different structure, asymmetric spherical roller bearings belong to the early products, primarily for the host service, a new design when the host is rarely choose symmetric spherical roller bearing, the internal structure after comprehensive improvement design and parameter optimization, compared with the early production of spherical roller bearings, able to bear a greater axial load, the bearing operating temperature is low, so it can adapt to the requirement of high speed, according to the inner ring with or without rim and retainers used different could be divided into two kinds of type C and CA, C type bearing inner ring is the feature of no guard and USES the steel plate stamping cage, the CA model, Ryan bearing characteristics of inner ring on both sides of the car system entities have a guard and use to maintain in order to improve the bearing lubrication, can provide the user with outer ring with a ring groove and oil hole of the three spherical roller bearing, expressed as a rear bearing code/W33, according to the requirement of the user can also supply with spherical roller bearing inner ring oil hole, in order to facilitate customer handling and replace bearings, also can provide inner hole bearing, spherical roller bearing with taper cone hole taper 1:12 for later nicknamed K said, in order to adapt to the requirement of special user could also provide inner hole taper bearings for 1:30, then buy code-named K30 inner hole of the tapered bearing lock nut will be available bearing directly on the conical journal, also can with tight sleeves or withdrawal will be installed on the cylindrical journal bearings.In order to ensure the bearing at high speed to prevent due to centrifugal effect between the raceway and roller produces harmful slip, the minimum radial load bearing should bear a certain size can press type estimation:
Fr = 0.02 C
Type in the
N Fr - minimum radial load
C - bearing the basic dynamic load rating of the N
Equivalent dynamic load
P = Fr + Y1Fa when Fa/Fr e
P = 0.67 Fr + Y2Fa when Fa/Fr e
Type in the
P - equivalent dynamic load N
Y1 Y2 - axial dynamic load coefficient
The equivalent static load
P0 = Fr + Y0Fa
Type in the
P0 - equivalent static load N
Y0 - axial static load factorB.varietyStructure type
[1] spherical roller bearing can be divided into: cylindrical inner hole and cone hole.Cone inner hole of rear taper 1:12 respectively, code-named K of spherical roller bearing type (153000 or 113000) and 1:30 rear code-named K30 spherical roller bearing.This kind of bearing with conical shaft timing, inner ring moving along the axial radial clearance of the bearing can be adjusted.[2]
Post code
To the rear, code-named K, K30 taper hole spherical roller bearings, installed on the suitable set set, became the post code for K + H and K30 + H the bearing.These bearings can be installed in the absence of shoulder axis, applicable to the often need to install and remove the bearings.In order to improve the lubrication performance of bearing, the bearing outer ring car have the annular groove and uniform distribution of three oil hole is drilled, then buy code-named W33.
Specific classification and model reference:
1, spherical roller bearings (20000 CC)
2, conical bore self-aligning roller bearing type 20000 (CCK)
3, spherical roller bearings (20000 CC/W33 type)
4, taper hole spherical roller bearings (20000 CCK/W33 type)
5, in a tight sleeve hole on the spherical roller bearings (20000 + H0000 CCK)
6, in a tight sleeve hole on the spherical roller bearings (20000 CCK/W33 + H0000 type)
The type of the related
Example: NTN LH series of automatic self-aligning roller bearings
The application of automatic self-aligning bearing increases gradually, especially under the environment of high temperature long life bearings.For different application environment, NTN engineering developed STJ2 type steel, can be in large temperature range, from room temperature to 250 ºC temperature range to extend the service life.The steel is LH series automatic self-aligning roller bearing standard material.This bearing features below (with SUJ2) large temperature range of long life bearings, 3.5 times that of ordinary material life at room temperature, under high temperature (250 ºC) is 30 times the ordinary material life, to prevent surface damage of injury, seven times the ability to prevent spalling, 1.4 times the ability of anti abrasion, 2.5 times the antiwear ability, high temperature under the condition of dimensional stability, in the 250 ºC when almost no changes in the size, is the strength of the rupture of fatigue, in the case of high temperature and tight fit, increase 2 times anti fatigue rupture life.Increase 2 times anti fatigue rupture strength, simplifying parts storage management procedures, can use a single standard from room temperature to 250 ºC bearing type, automatic self-aligning roller bearings will be gradually transformed into "LH series".C.installationSpherical roller bearing with two race between inner ring and groove for spherical outer ring, equipped with cylindrical roller bearing.On the surface of the outer ring raceway curvature center and bearing center consistent, so with automatic self-aligning ball bearing the same tone heart function.In there was a deflection axis, a hood, can automatically adjust load and two direction axial load.Large radial load capacity, suitable for heavy load and impact load.Inner circle diameter is tapered bore the bearing, it can be installed directly.Or the use of set cover, remove the cylinder installed on the cylinder axis.Keep rack stamping steel cage, polyamide forming keep frame and copper alloy car cage.
For the self-aligning bearing, the shaft bearing load case shaft hole, using middle ring installation can prevent the outer ring tilt and rotate.Should keep in mind that some of the size of the self-aligning ball bearing of ball protrudes from the side of the bearing, so the middle ring should be recessed installation, in case of damage to the ball.A large number of bearings are generally use mechanical or hydraulic pressure into the method for installation.
Type for the separable bearings, inner ring and outer ring can be installed separately, thus simplify the installation process, especially when the inside and outside the circle must be especially interference fit.In the inner ring has been installed in place of the axial load including outer ring of bearing box, must pay attention to see if inside and outside the circle to the right, in order to avoid scratch bearing raceway and rolling parts.If a cylinder and needle bearing with without the inner ring or side of the flange rim flange edge of the inner ring, it is recommended to use to install the sleeve.Outside diameter should be equal to the inner ring raceway diameter of sleeve F, machining tolerance standards should be d10.Drawn cup needle roller bearing is best to use the core shaft installation.D.applicationMain applicable cage: stamping steel reinforced cage (suffix E, domestic few).Stamping steel plate type cage (suffix CC), glass fiber enhanced polyamide 66 cage (suffix TVPB), machining of brass plate cage (suffix MB).Machined brass one-piece cage (suffix CA) stamping steel cage, vibration occasions (suffix JPA).Vibration occasions brass cage (suffix EMA).On the same structure, bearing code or have different.Such as: M.Some bearing factory said two type brass cage, some bearing factory said monolithic integrated brass cage.
Main use: papermaking machinery, speed reducer, railway vehicle axle, gear box bearing, rolling mill rolling mill rolls, crusher, vibrating screen, printing machinery, woodworking machinery, all kinds of industrial reducer, vertical arrange ushering self-aligning bearing.E.clearanceFor the installation of spherical roller bearing axial clearance, available on the journal of adjusting nut, adjusting shim and bearing hole of the thread, or use the methods of preloaded spring to adjust.Axial clearance size, the layout of the bearing installation and, the distance between bearings, shaft and bearing material, can be determined according to the working conditions.For high load high speed [3] of spherical roller bearing, adjust clearance, must consider the effect of temperature on the axial clearance, clearance reduction is estimated, will cause the temperature rise, that is to say, the axial clearance to properly adjust a bit bigger.For low speed and vibration of the bearing, no clearance should be taken to install, exerted load or the installation.Its purpose is to make the spherical roller bearing roller and raceway produce good contact, uniform distribution load, to prevent damaged roller and raceway is impacted by the vibration.After adjustment, the axial clearance with the size of the dial gauge test.Method is first will dial gauge fixed on the fuselage or bearing seat, smooth surface of the dial gauge contact to resist axis, around along the axial shaft, whose hands of throwing is the largest axial clearance value.2.More Products | boundary dimensions(mm) | Basic Load ratings(KN) | Limiting speeds(r/min) | Bearing No. |
| d | D | B | Mass(kg) | Cr | Cor | grease lub | oil lub |
| 25 | 52 | 18 | 0.18 | 35.7 | 35.7 | 8500 | 11000 | 22205C/CK |
| 25 | 52 | 18 | 0.18 | 43.1 | 44 | 8500 | 11000 | 22205CAK |
| 25 | 62 | 17 | 0.25 | 41.4 | 41.5 | 6700 | 8500 | 21305CK |
| 30 | 62 | 20 | 0.28 | 48.9 | 52 | 7500 | 9500 | 22206C/CK |
| 30 | 62 | 20 | 0.32 | 48.9 | 52 | 7500 | 9500 | 22206CA/CAK |
| 30 | 72 | 19 | 0.38 | 55.2 | 61 | 6000 | 7500 | 21306C/CK |
| 35 | 72 | 23 | 0.43 | 67.3 | 73.5 | 6300 | 8000 | 22207C/CK |
| 35 | 72 | 23 | 0.46 | 67.3 | 73.5 | 6300 | 8000 | 22207CA/CAK |
| 35 | 80 | 21 | 0.51 | 65.6 | 72 | 5300 | 6700 | 21307C/CK |
| 40 | 80 | 23 | 0.52 | 73.6 | 81.5 | 6000 | 7500 | 22208C/CK |
| 40 | 80 | 23 | 0.54 | 73.6 | 81.5 | 6000 | 7500 | 22208CA/CAK |
| 40 | 90 | 23 | 0.71 | 82.8 | 98 | 4500 | 5600 | 21308C/CK |
| 40 | 90 | 33 | 1 | 115 | 112 | 4500 | 5600 | 22308C/CK |
| 40 | 90 | 33 | 1.01 | 115 | 112 | 4500 | 5600 | 22308CA/CAK |
| 45 | 85 | 23 | 0.56 | 77.1 | 88 | 5300 | 6700 | 22209C/CK |
| 45 | 85 | 23 | 0.629 | 77.1 | 88 | 5300 | 6700 | 22209CA/CAK |
| 45 | 100 | 25 | 0.95 | 101 | 114 | 4300 | 5300 | 21309C/CK |
| 45 | 100 | 36 | 1.35 | 138 | 160 | 3800 | 4800 | 22309C/CK |
| 45 | 100 | 36 | 1.52 | 138 | 160 | 3800 | 4800 | 22309CA/CAK |
3.Main products ,Packing&Testing
| Packing details | 1 piece/Transparent plastic bag/inner box,1 plastic bag/carton/medium package,60 pieces/master carton
1 pc net weight:0.015kg,gross weight:0.016kg
medium package:10*25*9mm
master carton:20*75*90mm |
| Delivery details | 5-25 working days after payment |
4.Company and factory informationwe made industry and trading company integrated.meaning have our own factory,manufacturing deep groove ball bearing,tapered roller bearing,pillow block bearingand spherical roller bearing,professionally
engaged in imported bearings sales, which main imported products of NSK,NTN,KOYO,and TIMKEN and so on. We also have products
of domestic brands, such as ZWZ,HRB,and LYC. Our products are involved
in space flight,aviation, metallurgy, petrochemical, electric,power,
steel, railways, printing, food, medicine, chemical industry, mining machinery, construction
machinery, road construction machinery and other fields. Welcome the friends both in domestic
and abroad to come here for inspection and business negotiation.
5.Advantagea.Price advantage compare with the trading company, as we have our own factory
b.Compare with the factory we are easy communicated.c.our products were produced under strict quality test system.
d.More than many years industry experience
e.Accept OEM, customization, customers' logo
f.Our factory has various sizes bearing in stock.So we will arrange to send delivery within 3 days after received the payment from the buyers.
g.Welcome mini order
h.Multiplex-method of payment: Western Union, paypal, T/T, L/C at sight
i.Special discount and protection of sales area provide to our distributors.
j.We are worthy of an enquiry.
6.Aftersales service
Quality is the life of an enterprise, in order to make customers satisfactory products, we make the following commitment.- Products are inspected qualified when they leave the factory as stipulated in the national standard and customer requirements.
- The service life of bearing reached the international standard and customer requirements.
- According to the national standard regulations and customer requirements for bearing inner and outer packing, Ensure that no problem during the transit.
- Any quality problem appeared in the bearing products, it should be solved according to the provisions of the customer service commitment in time.
- If customer have any special quality requirement to the bearing products, the production should be processed according to customer requirements, guaranteeing the customer's special requirements.
7.Welcome friends from all over the world to visit, make a telephone or sent a letter to negotiate the business.
Thank you for your visiting
ITJ Technology (Tianjin) Co., Ltd is a modern, dynamically developing company - a professional bearing manufacturer and trader with 15 years' experience in China. Our office is located in Tianjin, which is the titled as the Fourth Industrial Base and the Third Foreign Trade Port. Adhering to the aim of "quality as top priority, innovation for mutual benefit, service is the uppermost" and the operation policy of "pursue perfect quality and create top-class brand", ITJ successfully registered its own brand. We constantly bring in advanced technology and improve our quality to meet the customers requirements.
With the China Bearing Industry entering into a new period of rapid development with high quality, ITJ successfully establish stable cooperation with many Well-known Bearing manufacturers both in home and abroad, which enable us to help our customers find any kind of bearing they need. Our own factory mainly focus on Tapered Roller Bearings, Deep Groove Ball Bearings and Pillow Block Bearings. But our business scope is not limited in the three kinds. ITJ also engaged in imported bearings sales professionally, the main imported brands involves SKF/ NSK/ NTN/ KOYO/ IKO/ THK/ TIMKEN and so on. We also manage the three main brands in domestic, which are ZWZ/ HRB/ and LYC. The stable cooperation with inland and abroad bearing manufacturers enable us to supply more kinds of high quality bearing with competitive price, such as Spherical roller bearings, Cylindrical roller Bearings, Angular contact ball bearings, etc. Our bearings are widely used in metallurgical, medical, food, print, railway, constructive and electric machinery. Our bearings are popular in America, Europe, North Africa, Asia, and so on.
"Quality first, Service first" is our eternal principle. Our mission is to share our advantages and provide bearings with high quality and reasonable price to the customers. We create long lasting partner relations, based on trust and good mutual cooperation, with both our customers and suppliers.
Welcome the friends both in domestic and abroad to come here for inspection and business negotiation.
